Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSSUBARU1989GL-10 4D SEDAN, 1.8 4REPAIR AND DIAGNOSIS (SINGLE PAGE)HEATING, VENTILATION & A/C (HVAC)GENERAL SERVICINGA/C COMPRESSOR OIL CHECKINGATSUGI ROTARY VANE DRAIN & REFILL
1989 Subaru GL-10 4D Sedan, 1.8 4
ATSUGI Rotary Vane Drain & Refill
1989 Subaru GL-10 4D Sedan, 1.8 4SECTION ATSUGI Rotary Vane Drain & Refill
- Before checking and adjusting oil level, operate compressor at engine idling speed, with controls set for maximum cooling and high blower speed, for 20 to 30 minutes to return oil to compressor.
- Stop engine, discharge refrigerant using approved refrigerant recovery/recycling equipment and remove compressor from vehicle. Drain compressor oil from compressor discharge port and measure the amount. Oil is sometimes hard to drain when compressor is cool. Remove oil while compressor is warm.
- If the amount drained is less than 3 ounces, conduct leak tests at system connections, and if necessary, repair or replace faulty parts. Check purity of oil and adjust oil level as follows.
- If amount drained was above 3 ounces, oil level is right. Pour in same amount as was drained. If amount drained was below 3 ounces, pour in 3 ounces of new refrigerant oil.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.